Internal combustion engine



Feb. 23, 1932.

W. R. MORRIS INTERNAL COMBUSTION ENGINE Filed July 25, 1930 2 Sheets-Sheet 1 J L D lAfl/fNTOR William R. Morris,

Fig. 2.

Feb. 23,v 1932. w. R. MORRIS 1,847,017

INTERNAL COMBUSTION ENGINE Filed July 25, 1930 2 Sheets-Sheet 2 O O O William R- Morris,

. ATTORNEY Figm Patented Feb. 23, 1932 UN-[ reo H VWILLIAMKRICHARD'MORREQOE COWLEY; therma mr'smm; cb mvsrro seem j This invention relatesto internal combustion engines in which thecylinder' head is provided with a detachable'c'over or enclosure through which combustion air is drawn, with the object of heating the air and c'ooling'the cylinder head and is concerned more particularly with those which additionally provide for cleaning or filtering the air.

This invention conslstsln so combinlngithe m heating means and the cleaning or filtering cleaned; I w v A further feature of the invention is that the inlets to the enclosure are so arranged that the air impinging against the ignition A further feature of the invention is that the filteringor cleaning means is disposed within the main enclosure.

5 two filters in parallel are provided in order to reduce air velocity through the filter.

A further feature of the invention; is the provision of means whereby the heating and so filtering cover or enclosure can be quickly detached. 7 v 'A further feature of the invention is that the filter extends substantially the full length of the cover or enclosure, thus making it un- 5 necessary to give attention to the filter except at infrequent intervals; V A further feature of the invention is that the heating and filtering enclosure may be formed as asheet'metal pressing. 1 40 In order that this invention maybe clearly understood and readily carried intopractice, the invention will be described with reference to the accompanying drawings in which z Fig. 1 is a sectional elevation ofme'ans for supplying air according to thepresent inventlon, only a single sparkplug being shown. Fig. 2 isa plan view-of Fig.1 withcertain parts removed.

-. Fig. 3 is a transverse sectionata right angle to Fig. 1 on the .line-33, Figure 1.

, and'partly means that 'the air is heated before it is A further feature ofsthe inventionis'that' e j i Wit he der h ad v Fig. 4 is an end view showing one means for-securing the cover in position;

Fig. 5 is a view-,partlyin vertical section and partly-in end: elevation, of a cover enrbodying open-topped shrouds around the sparking plugs; V 1 j J F g.6 is a View.partlyiin horizontal section intop plan of the cover shown in Flgi5.

In one :convenient embodimentrof my in= vention as applied, fonexample; to air-engine of theside valve type, with aafour cylin'der or six-ecylinderin line unit, a metallic cham= berycontainer or enclosnrea is provided to seat on the cylinder head Z) of an'interna'l combustion engines Thesaid chamber,con= tainer or enclosure a ls conveniently divided into two p artslf 'cby a horizontally arranged partition d; sufficient space being leftbetween said partition and the cylinder head of the engine to vclear thetops of thesparkpliigs e. constructionallythechamber unit may be forined as" a-sheet metal pressing substantially rectangular in formation andhaving welded or otherwisesecured thereto: trans= verse partitions f g situated at the extrem ities and nearzthe middle-respectively; The ends f may be integralwith the horizontally arranged partitionrl and the latter may be connectedto theitop wall '71. of the chamber by tubuli 1 i which form tunnels through which thestud's 4' for securing the enclosure a to the cylinder head; of the engine pass; said studs carrying hand" clamping nuts is. easily detachable'topermit removal-of theenclosure a and to afford access to the sparkingplug's. 7

The-transverse partitions f gare" perforated to provide for passages of air," and-theuductil formed bythe space between} the two parti tions geommunica'tes with an inserted stub pipe-mtowh-ich the pipe leading to the. carburettor ofthe engine it attached. -'Ioper mit of theintroduction of the cleaning mediun into-the upper chambers 6 apertures n are formed in the top wall of the enclosure a to accommodate removableplugs' 0 which for convenience may be made of pressed metal; A flange p may be, formed around the base of the enclosure a for making anair- When provision is made for cooling the ignition plugs by means of the ingoin air, inlets for such air'may be provided by orming apertures g in the sides of the enclosure a at positions in the vicinity of the sparking plugs and on the sides remote from the exhaust manifold. Accessto the said plugs is provi'dedby merely-removing.enclosure a,

. througha perforated support 8 ofhorseshoe but for facilitating this operation, the cables or leads 1 to the spark plugs e may pass shape permanently secured in position and engaged by a similarly shaped 'slot'in theen- Closure mher ythe tt rm r evit any; known orsuitable expedient bywhich suspended matter is removedfrom the ingoing air,:such for example, as a series of vanes shaped and positioned to impartto the: air current a rotary motion orwe may employ horse hairor similar, material. oiled to present a surface to which the dust may. adhere, a plurality of sections being if desired included to prevent packing of the cleaning material x v The enclosure a instead of being secured V in place as shown in Figures 1 and 3. may, as

shown 'in Figure 4, be hingedly attached to the cylinder head by means of a pivot t and maybe held down by swinging zcla-mping bolts u, the outlet being .connectedwith the carburettor of the engine by means of a flex? ible pipe 7". 2' v, L In' the arrangement illustrated, air passes through the: inlet ducts g in the lower compartment e'of the enclosure La and is thus directed 'toimpin'ge on to andcool the spark plugs; and iszthenf admitted to the upper compartments 5 through a suitable passage orpassages, forexample the perforations in the partitions f, after having,'lif desired,

' transversed-a tortuous path by the inclusion 1 a of appropriate bafiies and'passes through the upper compartments 6 in which'the suspended matteris removed from the air. The warmed and cleaned air is then discharged through asuitable conduit m to the air intake of the carburettor (not shown).- i I In the case of an overhead' valve engine theilsual cover may be extended upwardly and provided with a'false bottom to provide a chamber or space to. serve the same function as that described in connection with the side valve en'gine.

To obtaina low" air velocity andatthe theillustrated cover is suitable, one compart- .ment mayenclose two spark plugs, air inlets and forming part of,- the. combustible charge. Havingparticularly described and, ascensame time preserve the cooling efi'ect on the spark plugs, the inlet ducts 9 may be truncated, conical or flared shape forming pendant air tunnels co-axial with and surroundingthe spark plugs and terminating near the illustrated .in' Figs. 5 and fiwherein a compartment w is formed inthe side ofithe cover to. accommodate the sparking plug or plugs.

In the caseof a six-cylinder engine, for which base of the latter. Such a construction is may be'formed at g as in Fig. 1 and air may also.ente th u bspepee top w of the -'compartment.' The compartment may be formed as". asheetametal U shaped pressing y-welded or otherwise securedzin pos tiomas shown in Figure 6. Exits 2 may beformed around the perimeterot'the compartment 'w to allow air to pass into the lower comparti construction makes it possible to Storm the compartments rw oisufficient size to? permit ofitheintrocluction otaspanner. wrench: for removing the plugswithout removing the en? closure. "The spark plug leads may. bezat-f the comparte mentw'. P

' :By our invention, the ingoing air may. pass to the intake of the carburettor ata low ,ve-, locityowing to the considerable area and volume available, sosthat noise emanating from the ingoing air. is minimized. Further, the

'tache d by, passing .throughthe open-upper ends .or. through .the side of ice production of anfair current inproximityto the cylinderhead is, beneficiali'n reducing the temperature of the cylinder head andofjrais ing that of the air deliveredto the carburettor tained the nature-ofmy said invention and in whatmanner thesame is to be? performed, I

declare that what I claim is.;, r a, Y

1. An1 internal combustion, engine of-the head a cover or enclosure provided with an inlet 7 for. admission of, air. adjacent I the: cyl'- inder head and in which the airjisheatedand anair compartment in saidenclosur'e through which the air passes afterbeing heated. j; 1- 2. An internal combustion engine having over the cylinder head an enclosure forming an air heater andprovided with faninlet for admission-of, air. directly; from; the atmosphere'against the ignition plug anda com partment 1n said enclosure through which the air passes and inwhich it is cleaned afterbeinghea'ted,

3. .In an internal combustion. ngine having an enclosure adapted to form ,anair heater-cleaner overthe cylinder head, the Iprovision of open-topped shrouds or vtunnels around the ignition plugs topermit of access thereto-while. the enclosure is inposition'.

mentand thence throughthe filtering chamg5 her in manner already-described; 7 Such a i .VIO' kind referred to having over the cyllnder 4. In an internal combustion engine, an

v enclosure over the cylinder head having an V enclosure over the cylinder head adapted to V inlet and forming an air heater, and an air cleaning compartment disposed within said enclosure through which the air passes after being heated. 1

5. In an internal combustion engine, an

enclosure over the cylinder'head adapted to form an air heater-cleaner and having two filter chambers in parallel to reduce air velocity through the filter. v

6. In an internal combustion engine, an enclosure over the cylinder head of the engine, and forming an air heater-cleaner, said enclosure being hingedly attached to the engine and secured by a quickly operable fastening.

7. In an internal combustion engine, an

form an air heater, and an air filter in said enclosure extending substantially thewhole length of the enclosure and through which the air passes after being heated.

8. An internal combustion engine having an enclosure over the cylinder head adapted to form an air heater-cleaner and extended to the vicinity of the exhaust manifold or system.

9. In an internal combustion engine a pressed metal casing adapted to be applied to the cylinder head of said engine, a horizontal partition dividing the casing into two chambers, transverse partitions secured to said casing near the extremity and mlddle respectively, tubular members connecting the said. horizontal partition with the ceiling of the casing, access apertures in the ceiling of 1 V l the said casing, removable plugs in said apertures, and an outlet for air situated between a the two middle transverse partitions, the parts being so arranged that air enters the lower part of the casing is there heated and then passes through the filtering medium in the upper chamber to an outlet connected to the carburetting system.

In testimony whereof I have signed my name to this specification at Birmingham, England this 15th day of July, 1930. r

WILLIAM RICHARD MORRIS. 

